Name: aFe 18-21 Ford Mustang GT 5.0L 85mm Billet Throttle Body
Brand: aFe
SKU: AFE46-39101
Price: 689.0 USD
Availability: InStock

aFe 18-21 Ford Mustang GT 5.0L 85mm Billet Throttle Body

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aFe 18-21 Ford Mustang GT 5.0L 85mm Billet Throttle Body

aFe
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SKU: AFE46-39101
Barcode: 802959468111

Test results on aFe’s Dynojet dyno showed power gains across the power band, topping out at +17 HP and +15... Read more

7 in stock 2 day delivery

$689.00

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Shipped today? Order within: Jul 25, 2026 16:00:00 -0400

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Description

Test results on aFe’s Dynojet dyno showed power gains across the power band, topping out at +17 HP and +15 lb-ft torque at 6,000 rpm. Testing was conducted on a 2020 Mustang 5.0 comparing stock and the aFe Power BTB (all tests conducted using 91-octane fuel). No other modifications to the vehicle were made, so imagine the potential when you add in other performance enhancing products such as a cold air intake, tuner and cat-back exhaust! By the way, for you truck enthusiasts, this product also fits the F-Series (see application table for exact vehicle fitment). Not only did we increase the bore diameter from the stock 80 mm to 85 mm, we redesigned the throttle body from the ground up, aerodynamically improving the air flow path. Why 85 mm and not larger? 3 reasons: 1) At 85 mm, no custom tuning is required so this works right out of the box; 2) The 85 mm diameter provides a direct path into the 84 mm intake manifold opening, a larger diameter would require modification to the stock manifold, or use of an aftermarket one; and 3) The mounting diameter for your intake tube is only slightly increased, but it allows you to retain the stock intake tube or you can upgrade to a cold air intake without having any special adapters. Not wanting to be like the rest, aFe chose to make the BTB out of billet 6061-T6 aluminum, precision machined and capped off with a black anodized finish for that stealthy custom look. As a finishing touch, we have laser etched the aFe Power logo and throttle body size right on the top. The throttle plate is made of brass, the significance here is to eliminate the chance of galling against the aluminum body. Each throttle body is serialized for authenticity.

This Part Fits:

Year	Make	Model	Submodel
2018-2020	Ford	F-150	King Ranch
2018-2020	Ford	F-150	Lariat
2018-2020	Ford	F-150	Platinum
2018-2020	Ford	F-150	SSV
2018-2020	Ford	F-150	XL
2018-2020	Ford	F-150	XLT
2020-2023	Ford	F-250 Super Duty	King Ranch
2020-2023	Ford	F-250 Super Duty	Lariat
2020-2023	Ford	F-250 Super Duty	Platinum
2020-2023	Ford	F-250 Super Duty	XL
2020-2023	Ford	F-250 Super Duty	XLT
2020-2023	Ford	F-350 Super Duty	King Ranch
2020-2023	Ford	F-350 Super Duty	Lariat
2020-2023	Ford	F-350 Super Duty	Platinum
2020-2023	Ford	F-350 Super Duty	XL
2020-2023	Ford	F-350 Super Duty	XLT
2019-2020	Ford	Mustang	Bullitt
2018-2025	Ford	Mustang	GT
2018-2021	Ford	Mustang	GT Premium
2021	Ford	Mustang	Mach 1

Specifications

Type: Aftermarket
Usage: Street Use & Speedway

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When will my order be delivered?

Delivery typically takes 1–4 business days. After placing your order, you will receive an email with shipping updates, tracking information, and any additional details needed to ensure a smooth delivery process.

Can I return my product?

Orders may be returned or exchanged within 15 days of receiving the parcel, provided the items are in their original, resalable condition. Customers are responsible for return shipping costs unless the return is due to an error made by Gearhead Motoring, in which case we will cover all shipping costs. Please wait for an RMA number and return instructions before sending any item back. Items returned without an RMA will not be accepted.

What can I do if my item (or part of it) is damaged?

Damaged Shipments

If your shipment arrives damaged, whether visible upon delivery or discovered after opening the package, please follow these steps immediately:

Contact Gearhead Motoring as soon as possible and submit a damage claim at shipping@gearheadmotoring.com
Keep all original packaging materials, including the box and packing materials.
Make a list of any damaged or missing items.
Take clear photos of the damaged packaging and the affected products.
If the delivery driver cannot wait for an inspection, or does not allow you to inspect the shipment, write "SUBJECT TO INSPECTION" on the delivery receipt before signing and ask the driver to acknowledge it.

Once we receive the required information, Gearhead Motoring will work directly with the shipping carrier and arrange a pickup if necessary. Do not return any merchandise without prior written authorization and an RMA number from Gearhead Motoring.

After the returned product is received and inspected, we will notify you whether the item will be replaced, or if a refund or store credit will be issued.

Important: By signing and accepting a freight shipment, you may waive your right to file a damage claim for any damage not noted on the delivery receipt. We strongly recommend inspecting all freight shipments upon arrival, even if the outer packaging appears to be in good condition.